Show HN: Secure private diffchecker with merge support | Hacker News Reader

Show HN: Secure private diffchecker with merge support

diffchecker.dev

17 pointssubhash_k16 comments

Built a minimal diff checker with merge feature.

1. Supports 25K+ lines.

2. Character level instant diff.

3. Diff merge feature.

4. Share able links.

5. 100% secure, all diff computation happens in browser.

No other website offering high quality diff checker and merge feature with just browser only implementation.

Please review the website in detail and share feedback.

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I’m still finding a local instance of Beyond Compare [0] unbeatable.

Especially its table compare feature [1].

[0]: https://www.scootersoftware.com/

[1]: https://www.scootersoftware.com/v4help/viewdata.html

Never had a need to do table comparison. Looks like customised csv diff comparison. Will look into and see if i can add it as feature or different page/tool.

I needed it for diffing big csv files where the diff was complicated to understand, and limited to some columns out of 30+ columns.

Might be niche, though.

How does this compare to existing offline solutions like Emacs Ediff, KDiff3, etc?

Given is this is a website you can access it easily without having a need to install. Mostly features will be more over same.

Some of the CSS is making the numbered steps start at 8 instead of 1. In particular

    ol { counter-reset: steps; }

Can you please share the link of diff? You can copy it from the website after input by clicking share as url button, so that it will easy for me to debug. Thanks for the feedback.

It's based on an inline stylesheet with thousands of rules. The compressed URL is... big.

Bro no one will use a web service and trust it is 100% private. This is an unprovable claim. Maybe it is private now, but you sell this in 5 years and it stops being so.

Maybe a JavaScript ad jailbreaks an iframe and reads this.

There is no beating a locally running program

Agreed the feeling of pasting code to external website always feels insecure. But it doesn't mean locally running programs are safe either.

Atleast in website like this you can disable network access and work in offline mode and get the confident.

Do you release the code as FOSS?

Unfortunately No. Planning to monetize through ads once UI is polished.

Why would releasing the code under a FOSS license prevent you from adding ads?

To be honest. Never really thought about it fully. I don't know monetization plan as well. I just wanted to create better private version of diff checker and merge. Will think through and update here.

Not so secure and private then if you're planning to embed a bunch of ad tracking scripts...

The input data will not be passed on to any server which include ads as well. The input will not be persisted so no way the data is accessible other that the user.

This can be tested by disabling the internet and checking the diff.

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